Liftings and invariant subspaces of Hankel operators
arXiv:2408.13753
Abstract
We prove a Hankel-variant commutant lifting theorem. This also uncovers the complete structure of the Beurling-type reducing and invariant subspaces of Hankel operators. Kernel spaces of Hankel operators play a key role in the analysis.
19 pages. Revised. To appear in Publicacions Matemàtiques